人教版七年级数学下册解一元一次不等式专项练习 72.docx

1、人教版七年级数学下册解一元一次不等式专项练习 723x227(2x12) x2 5x8 6x7 6x8 6 4 4 5 7 9x109(10x21) 7x6 x9 6x4 x8 2 6 7 7 8 5x127(2x15) 6x2 5x6 x3 7x8 1 5 6 7 8 9x510x6 8( x7) 10x25 4(9x8)3(8x16) x5 4x2 7x9 x3 2x28 8(3x6)3(10x6) x9 7x4 x3 5x4 1 6 6 3 6 x66x28 2(7x9) 6 6 6 4 4 x910x9 6(3x7) 6x6 2(9x9)3(10x29) x7 8x8 x2 2x2 5

2、 6 7 3 3 9x78x9 4(5x2) 3 4 5 3 6 3x214x30 8(7x9) 5 4 7 8 6 x217(8x3) 4x6 x6 5x9 x4 5 3 3 4 6 9x37(4x27) 5x9 2x1 x2 x1 3 4 3 3 3 5x64x26 4( x2) 3 8 8 8 5 x299(2x28) 5x5 x6 9x1 7x1 4x12 6(7x6)9(4x2) x8 8x5 x2 8x9 1 3 7 5 7 9x98x8 4( x1)7(4x9) x1 4x7 x5 7x4 2 4 3 6 6 x55(4x3) x2 x6 6x9 x6 4 4 4 7 5 3x5

3、10x10 8(3x6) 4 6 7 5 5 7x83(8x5) 4x4 x2 x5 x8 6 3 8 8 5 3x132x18 6(3x1) 2 7 6 8 5 x228x12 6(5x6) 3 5 8 8 4 3x26x23 8(5x3)7(2x6) 2x8 x3 x3 5x4 6 3 3 6 6 9x155(8x22) 7x4 9x6 8x1 7x1 10x23 4(5x2)3(10x27) x9 5x9 x2 x3 8x30 6( x10) 10x29 6(5x7)9(6x1) x8 9x9 x1 9x6 6x26 2( x7)7(2x30) x2 7x6 6x3 4x5 6 7 8

4、7 5 x202x8 6( x1)5(8x20) x1 x1 x7 x1 4 3 6 7 3 x134x17 6(9x8) 6 8 7 3 7 5x283(4x12) x5 6x4 7x7 9x7 2 6 7 6 8 9x206x28 4(9x10) 6 5 8 7 6 9x305(4x15) x6 8x4 5x7 5x1 8x27 8(9x4)7(8x22) 7x5 7x9 x3 x3 4 6 6 5 6 x186x6 8(7x9)7(6x22) x4 7x4 5x5 7x1 3 6 8 6 8 3x13(8x26) 3x3 5x9 5x4 9x5 5 4 6 6 8 5x164x6 8(7

5、x9)3(8x22) x3 4x3 4x5 x2 6 7 5 3 5 x258x6 8( x3)7(10x15) x4 x8 7x1 x9 6x1 2( x3)5(6x1) x6 x6 x7 5x5 6x8 8(9x10)3(2x24) x9 9x7 x1 x6 6x29 8(5x9) 1 7 5 8 3 5x304x18 6(9x8) 1 6 3 6 5 x126x3 2( x5) 6 5 3 7 7 x99(8x12) x8 x4 5x9 x5 1 3 8 6 7 3x107(4x27) 2x4 9x1 x4 x7 6 3 8 6 5 9x2810x11 2(3x1) 5 7 4 4 6 5x163(8x6) x7 7x4 x2 9x3 2x24 6(7x7)3(2x20)